函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\partitions\aix.c Create Date:2022-07-27 19:01:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：last_lba(): return number of last logical block of device*@bdev: block device* Description: Returns last LBA value on success, 0 on error.* This is stored (by sd and ide-geometry) in* the part[0] entry for this disk, and is the number of

函数原型：static u64 last_lba(struct block_device *bdev)

返回类型：u64

参数：

类型参数名称
struct block_device *bdev
81  如果非bdev或非 will die 则返回:0
83  返回:i_size右移9位的值减1ULL
调用者
名称描述
read_lbaad_lba(): Read bytes from disk, starting at given LBA*@state*@lba*@buffer*@count* Description: Reads @count bytes from @state->bdev into @buffer.* Returns number of bytes read on success, 0 on error.